Electric blanket construction

Abstract

This utility model discloses an electric blanket structure, relating to the field of electric blanket technology. The key technical points are: it includes a blanket body, comprising a blanket surface one and a blanket surface two. Heating wires are disposed between blanket surface one and blanket surface two, connected by wires. A flexible loop is sewn onto one side of blanket surface one, forming a protrusion on one side and a recess on one side of blanket surface two. The flexible loop has grooves. Both blanket surface one and blanket surface two are woven from elastic yarn. When folding and storing the electric blanket, people habitually fold the blanket body along the gaps between adjacent protrusions. This method effectively avoids the heating wires, preventing them from breaking. When in use, the protrusions face the bed surface, and the recesses face the body, reducing the impact of the flexible loops on the comfort of the electric blanket.

Description

Technical Field

[0001] This utility model relates to the field of electric blanket technology, and more specifically, to the structure of electric blankets. Background Technology

[0002] An electric blanket is a bedding product that converts electrical energy into heat energy to achieve the purpose of warmth. An electric blanket usually includes a controller and a blanket body. The blanket body is filled with heating wires, and the controller is electrically connected to the heating wires and controls the heat output of the heating wires.

[0003] In the existing technology, heating wires are usually made of nickel-chromium alloy wire. This material has the advantage of high resistivity, which can efficiently convert electrical energy into heat energy. However, it also has the characteristics of being relatively hard. When folding and storing electric blankets, sharp corners should be avoided to prevent the heating wire from being broken. This makes folding and storing electric blankets inconvenient.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electric blanket structure.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an electric blanket structure, including a blanket body, the blanket body including a blanket surface one and a blanket surface two fixed to each other, the blanket surface one being used to contact the bed surface, a plurality of heating wires being arranged between the blanket surface one and the blanket surface two, the plurality of heating wires being connected by wires; a plurality of flexible loops are sewn on the side of the blanket surface one facing the blanket surface two, the heating wires being surrounded by the flexible loops, the flexible loops forming protrusions on the side of the blanket surface one facing away from the heating wires; the flexible loops are also sewn and fixed on the blanket surface two, the flexible loops forming recesses on the side of the blanket surface two facing away from the heating wires; the flexible loops are provided with grooves for the wires to pass through, the depth of the grooves being less than the thickness of the flexible loops, the width of the grooves being greater than the width of the wires; both the blanket surface one and the blanket surface two are woven from elastic yarn.

[0007] The present invention is further configured such that: the cross-section of the flexible ring is U-shaped, and a plurality of protruding blocks are provided on the arc-shaped convex surface of the flexible ring.

[0008] The present invention is further configured such that the longitudinal section of the conductor is rectangular.

[0009] The present invention is further configured such that: each of the two opposite sidewalls of the groove is provided with a tab for contacting the wire, and the distance between the two tabs is less than the width of the wire.

[0010] The present invention is further configured such that the thickness of the second blanket surface is less than the thickness of the first blanket surface.

[0011] In summary, this utility model has the following beneficial effects: When folding and storing electric blankets, people habitually fold the blanket along the gap between adjacent protrusions. This way, the folding position can effectively avoid the heating wire, thus preventing the heating wire from being broken. When using an electric blanket, the raised part should face the bed surface and the concave part should face the body to reduce the impact of the flexible ring design on the comfort of the electric blanket; When the blanket is compressed, the protrusions are pressed into the bed surface, increasing the static friction coefficient between the bed surface and the blanket and reducing the possibility of the electric blanket slipping on the bed surface. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 Used to display the second carpet surface; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 Used to display carpet surface one; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0013] In the diagram: 1. Blanket surface one; 2. Blanket surface two; 3. Heating wire; 4. Wire; 5. Flexible loop; 6. Protrusion; 7. Depression; 8. Groove; 9. Ear piece. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] Electric blanket structure, such as Figures 1 to 3As shown, the blanket body includes a blanket surface 1 and a blanket surface 2 fixed to each other. Blanket surface 1 is used to contact the bed surface. Several heating wires 3 are sewn and fixed between blanket surface 1 and blanket surface 2. The heating wires 3 are connected by wires 4, which are made of copper core with an outer rubber insulation layer. The distance between adjacent heating wires 3 is less than the length of the wire 4. Several flexible rings 5 ​​are sewn on the side of blanket surface 1 facing blanket surface 2. The flexible rings 5 ​​do not abut against each other and are made of silicone material. The heating wires 3 are surrounded by the flexible rings 5. The flexible rings 5 ​​form protrusions 6 on the side of blanket surface 1 facing away from the heating wires 3. The flexible rings 5 ​​are also sewn and fixed to blanket surface 2. Strip 5 forms a recess 7 on the side of the blanket surface 2 facing away from the heating wire 3. Since the location of the flexible ring strip 5 on the blanket body is more solid than the location without the flexible ring strip 5, the area between adjacent flexible ring strips 5, i.e., between adjacent protrusions 6, is easier to fold during folding. Therefore, when folding and storing the electric blanket, people habitually fold the blanket body along the gap between adjacent protrusions 6. This method effectively avoids the heating wire, preventing it from breaking. The copper core wire 4 with a rubber insulation layer has good bending performance, making it less prone to breakage after bending, effectively ensuring the connection between adjacent heating wires 3. The flexible loop 5 forms a protrusion 6 on the blanket surface 1 and a recess 7 on the blanket surface 2. This ensures that when the electric blanket is in use, the protrusion 6 faces the bed surface and the recess 7 faces the body, reducing the impact of the flexible loop 5 on the comfort of the electric blanket. Furthermore, when a person presses on the electric blanket, gravity causes the flexible loop 5 to deform, further reducing its impact on the blanket's flatness. Simultaneously, the protrusion 6 is pressed into the bed surface, increasing the static friction coefficient between the bed surface and the blanket, reducing the possibility of the electric blanket slipping on the bed surface. The flexible loop 5 has a groove 8 for the wire 4 to pass through. The flexible loop 5 near the groove 8 is sewn and fixed to the blanket surface 1 but not to the blanket surface 2. This design allows the conductor 4 to slide only within the grooves 8 of two adjacent flexible rings 5 ​​when the blanket is folded, reducing the likelihood of the conductor 4 being stretched or compressed and thus minimizing the possibility of damage. The depth of the groove 8 is less than the thickness of the flexible ring 5, and the width of the groove 8 is greater than the width of the conductor 4. This design gives the conductor 4 a high degree of freedom within the two grooves 8 and also reduces the possibility of damage. Both blanket surface 1 and blanket surface 2 are woven with elastic yarn, specifically, the elastic yarn is made of twisted elastic polyester fibers. This design allows either blanket surface 1 or blanket surface 2 to be stretched and deformed to a certain extent when the blanket is folded, facilitating the folding of the blanket.

[0016] like Figure 3 and Figure 4As shown, the flexible ring 5 has a U-shaped cross-section, and the conductor 4 has a rectangular longitudinal cross-section. Specifically, the conductor 4 adopts a flat wire design, and its thickness is controlled between 5mm and 7mm. The width direction of the conductor 4 is set along the width direction of the groove 8, and the thickness direction of the conductor 4 is set along the depth direction of the groove 8. Compared with the conductor 4 using a conventional round wire design, the flat wire design of the conductor 4 has a smaller bending radius, making the conductor 4 easier to bend and reducing the impact of the conductor 4 on the folding of the blanket. The groove 8 has ear pieces 9 on its two opposite sidewalls for contacting the conductor 4, and the distance between the two ear pieces 9 is small. Regarding the width of the wire 4, the ear piece 9 and the flexible ring strip 5 are also integrally formed. When producing electric blankets, the flexible ring strip 5 is first fixed on the blanket surface 1. Then, all the heating wires are sequentially distributed to each flexible ring strip 5 and the wire 4 is embedded in the groove 8. Finally, the blanket surface 2 is fixed on the blanket surface 1. At this time, the ear piece 9 limits the wire 4, making it difficult for the wire 4 to come out of the groove 8, which can ensure the convenience of electric blanket production. The thickness of the blanket surface 2 is less than the thickness of the blanket surface 1. Since the blanket surface 2 is in contact with the bed surface, the thicker blanket surface 1 can better lock in the heat and reduce the heat absorbed by the bed surface, ensuring the heating effect of the electric blanket.

[0017] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An electric blanket structure, comprising a blanket body, characterized in that: The blanket body includes a blanket surface one (1) and a blanket surface two (2) fixed to each other. The blanket surface one (1) is used to contact the bed surface. A plurality of heating wires (3) are provided between the blanket surface one (1) and the blanket surface two (2). The plurality of heating wires (3) are connected to each other by wires (4). The side of the blanket surface one (1) facing the blanket surface two (2) is sewn with several flexible ring strips (5), the heating wire (3) is surrounded by the flexible ring strips (5), and the flexible ring strips (5) form a protrusion (6) on the side of the blanket surface one (1) facing away from the heating wire (3). The flexible ring (5) is also sewn and fixed on the second blanket surface (2), and the flexible ring (5) forms a recess (7) on the side of the second blanket surface (2) facing away from the heating wire (3). The flexible ring (5) is provided with a groove (8) for the wire (4) to pass through. The depth of the groove (8) is less than the thickness of the flexible ring (5), and the width of the groove (8) is greater than the width of the wire (4). Both the first (1) and the second (2) of the blanket are formed by elastic yarn weaving.

2. The electric blanket structure according to claim 1, characterized in that: The length of the wire (4) is greater than the distance between two adjacent heating wires (3).

3. The electric blanket structure according to claim 1, characterized in that: The longitudinal section of the conductor (4) is rectangular.

4. The electric blanket structure according to claim 3, characterized in that: The groove (8) has ear pieces (9) on its two opposite sidewalls for contacting the wire (4), and the distance between the two ear pieces (9) is less than the width of the wire (4).

5. The electric blanket structure according to claim 1, characterized in that: The thickness of the second blanket (2) is less than the thickness of the first blanket (1).

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